TAILIEUCHUNG - Báo cáo lâm nghiệp: "Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.)"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.). | Ann. For. Sci. 63 2006 929-940 INRA EDP Sciences 2006 DOI forest 2006076 929 Original article Modelling dominant height growth and site index curves for rebollo oak Quercus pyrenaica Willd. Patricia ADAMEa Isabel CANELLASb Sonia ROIGb Miren DEL Riob a Departamento de Investigation y Experiencias Forestales de Valonsadero Junta de Castilla y León Aptdo 175 Soria 42080 Spain b Forest Research Centre CIFOR-INIA Ctra A Coruna km 7 5 Madrid 28040 Spain Received 18 July 2005 accepted 9 May 2006 Abstract - A dominant height growth model and a site index model were developed for rebollo oak Quercus pyrenaica Willd. in northwest Spain. Data from 147 stem analysis in 90 permanent plots where rebollo oak was the main species were used for modelling. The plots were selected from the National Forest Inventory at random in proportion to four biogeoclimatic stratums. Different traditional and generalized algebraic difference equations were tested. The evaluation criteria included qualitative and quantitative examinations and a testing with independent data from another region. The generalized algebraic difference equation of Cieszewski based on Bailey equation showed the best results for the four stratums. An analysis of the height growth patterns among ecological stratums was made in order to study the necessity of different site index curves. Results indicated the validity of a common height growth model for the four stratums. In spite of the irregular height growth pattern observed in rebollo oak probably due to past management the model obtained allows us to classify and compare correctly rebollo oak stands growing at different sites. growth model site index rebollo oak coppices algebraic difference equations Résumé - Modèle de croissance en hauteur et qualité de station de chêne tauzin Quercus pyrenaica Willd. . Les auteurs ont développé un modèle de croissance pour estimer la hauteur dominante et la qualité de station des peuplements de chêne tauzin Quercus .

• Báo cáo khoa học
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp